On Monitoring and Alerting: the elegance of simplicity in a world that worships complexity

I already presented in an article the tools I am going to talk about now, but this time it will be a less technical and more “philosophical” approach. In the era of observability hype, where every dashboard shines with dynamic graphs and intense colors, talking about Monit and MMonit sounds almost like heresy. No containers, … Read more

Monit and M/Monit. The efficient monitoring and alerting system

In the administration of any system, a very important part is having a monitoring and alerting system for any relevant incident. There are currently multiple open source systems created and designed for this purpose, some simple and others very complex with different approaches and purposes. Monitoring homogeneous servers is not the same as monitoring routers … Read more

Reclaim disk space from raw images on Linux/Proxmox

To make the costs associated with any cloud service provider profitable, the majority (if not all) play with selling more resources than they physically have in their infrastructure, which is what is commonly known as “overprovisioning”. The idea plays on the fact that not all customers will consume the maximum of assigned resources, thus allowing … Read more

PrestaShop and the Smarty cache

One of the recommended features to improve performance in PrestaShop is to enable the “Smarty cache”. You can find this option in “Advanced Parameters -> Performance”, but it is not always true that the best option is to have it enabled. There are countless modules and templates for PrestaShop and each one is programmed better … Read more

Efficient backups with ZFS + snapshots + automatic compression + incremental rsync

What is the importance of a backup system? Everything. No infallible system exists, the datacenter provider can fail (do you remember the OVH fire?), the hardware of your dedicated server, a disastrous data manipulation by a user in the back office, an out-of-control synchronization process, a failed Magento update… so many and so many possible … Read more